Rio de Janeiro to San Fernando: time difference
San Fernando is 3 h behind Rio de Janeiro. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Rio de Janeiro 07:20 7:20 AM San Fernando 04:20 4:20 AM You –:–
07:20 7:20 AM
Brasilia Standard Time · UTC-3
☀️ 05:15 · 🌙 18:01
04:20 4:20 AM
Central Standard Time · UTC-6
☀️ 06:08 · 🌙 17:48
·
−3 h
San Fernando is 3 h behind Rio de Janeiro.
When you, Rio de Janeiro and San Fernando are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇧🇷 Rio de Janeiro
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇲🇽 San Fernando
21 9 PM 22 10 PM 23 11 PM 0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇧🇷 Rio de Janeiro | 🇲🇽 San Fernando |
|---|---|---|
| Local time | 07:20 | 04:20 |
| Local date | Thursday, October 22, 2026 | Thursday, October 22, 2026 |
| Time zone | Brasilia Standard Time | Central Standard Time |
| UTC offset | UTC-3 | UTC-6 |
| Offset from Rio de Janeiro | — | −3 h |
| IANA zone | America/Sao Paulo | America/Mexico City |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:15 | 06:08 |
| Sunset | 18:01 | 17:48 |
| Daylight | 12 h 45 min | 11 h 40 min |
| People on this clock | 6,211,223 | 11,867 |
Compare Rio de Janeiro with another city
More comparisons with Rio de Janeiro: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Rio de Janeiro and San Fernando: common questions
How far behind Rio de Janeiro is San Fernando?
San Fernando is 3 hours behind Rio de Janeiro: UTC−6 against UTC−3.
What time is it in San Fernando at the start of the working day in Rio de Janeiro?
The working day in Rio de Janeiro starts at 9:00 AM; in San Fernando it is 6:00 AM at that moment.
If it is 6:00 PM in Rio de Janeiro, what time is it in San Fernando?
At 6:00 PM in Rio de Janeiro, clocks in San Fernando show 3:00 PM.
When do working hours in Rio de Janeiro and in San Fernando overlap?
Working hours (9:00 AM–6:00 PM) overlap from 12:00 PM to 6:00 PM in Rio de Janeiro, which is 9:00 AM to 3:00 PM in San Fernando.
Until what time in Rio de Janeiro is it still yesterday in San Fernando?
Before 3:00 AM in Rio de Janeiro, the date in San Fernando has not changed yet. From 9:00 PM in San Fernando, it is already the next day in Rio de Janeiro.
Is the time difference between Rio de Janeiro and San Fernando the same all year?
Yes. Neither Rio de Janeiro nor San Fernando switches to summer time, so the gap is always 3 hours.
